Vector layer should be always on top of raster/image layers

[epifanio]

Adding a ``DrawControl()` to the map, and later on add a raster layer like:

io = ImageOverlay(url='http://ipython.org/_static/IPy_header.png', bounds=m.bounds)
m.add_layer(io)

When digitizing a new feature, the vector is drawn correctly, but behind the ImageOverlay.

[epifanio]

step to reproduce the behaviour: https://gist.github.com/epifanio/6f9facdd177d39be85d912f092515b3c

[epifanio]

Any pointer on which part of the src code I should look into? I was looking at jupyter-leaflet.js#L296 trying to understand if it is possible to "reorder" the sequence of active layers, but I can't find a way to do that. I saw a method path-bringtofront which may be useful ..

[ellisonbg]

Hmm, not sure how that could be accomplished and don't have time to dig into it right now :(

[SylvainCorlay]

Closing. Layers now always respect the order of the layers python tuple, and it cannot be altered by toggling the visible attribute anymore.